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Logitech M220 Silent Mouse Left Mouse Button Not Working Properly Fix

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Video Overview

  1. Logitech M220 Silent Mouse Left Mouse Button Not Working Properly Fix, How to fix a Logitech M220 silentmouse left button not working: step 1, image 1 of 1
    • Remove battery cap and 1.5V AA battery on the underside of the mouse.

    • The black spot is a Phillips cheese head screw. Remove the screw (anti-clockwise).

    • Note: Do not lose the small screw.

  2. Logitech M220 Silent Mouse Left Mouse Button Not Working Properly Fix: step 2, image 1 of 1
    • Now turn over the mouse, and gently move the top-half of the mouse towards you, with a little wiggle.

    • The result should be that the cover of the mouse gives room, and you can take off the cover of the mouse (with the wheel).

    • Here you can see the lips on the wheel side that should slide off the protrusions on the bottom side.

  3. Logitech M220 Silent Mouse Left Mouse Button Not Working Properly Fix: step 3, image 1 of 1
    • The PCB inside the mouse is held in place with 3 clips. The easiest way to hold these back is with a set of picks. I put a pick on the bottom and the right side and was able to wiggle the PCB out of its position, along with the two battery springs.

    • Be careful with the battery springs which are attached to the PCB. Make sure they do not get bent or are left in the bottom plastic housing.

    • With the mouse disassembled, you can clean the plastic mouse housing with 70% isopropyl alcohol or an alcohol wet wipe.

    • Note: Do not lose the small plastic on-off slide button

  4. Logitech M220 Silent Mouse Left Mouse Button Not Working Properly Fix: step 4, image 1 of 2 Logitech M220 Silent Mouse Left Mouse Button Not Working Properly Fix: step 4, image 2 of 2
    • Now that the PCB is loose from the bottom plastic of the mouse, you can check the contacts of the microswitches.

    • I noticed discoloring of the solder, and the microswitch seemed to wiggle a bit.

  5. Logitech M220 Silent Mouse Left Mouse Button Not Working Properly Fix: step 5, image 1 of 1
    • Resolder the connections.

  6. Logitech M220 Silent Mouse Left Mouse Button Not Working Properly Fix: step 6, image 1 of 1
    • When pushing the PCB back into the bottom part of the mouse, make sure the plastic on/off slide button of the mouse is aligned with the tiny handle of the slide switch on PCB.

  7. Logitech M220 Silent Mouse Left Mouse Button Not Working Properly Fix: step 7, image 1 of 1
    • Now with the PCB reinserted in the bottom of the mouse, reinsert the battery before trying to push the cover on top, to make sure the mouse is in working order. You can press the switches and move the mouse to see if everything is OK.

Conclusion

To reassemble your device, follow these instructions in reverse order.

7 other people completed this guide.

johan

Member since: 01/21/11

279 Reputation

1 Guide authored

3 Comments

I'm looking for replacement switches for pebble mice. I have 2 M355s with failing switches. Lube did not help and made 1 of the switches stop returning all the way from the down position. So I'd just like to replace the switches because they are otherwise great mice.

Ed Pike - Reply

Try this: 6mm x 6mm x 4.3mm (height) 2-pin microswitch. Check Reviews section for photos.

https://a.aliexpress.com/_mtHdF6K

Butterflybug -

I have had 3 M330 silent mouse with failing left switches. However, I was able to recover them by disassembly, cleaning with alcohol and adding a tiny bit of oil /wd40. This video demonstrates. It fixed 2 of the mice and improved the 3rd.

https://www.youtube.com/watch?v=-w-W6MAn...

garbage911garbage - Reply

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